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Subtract 15/10 from 54/70

1st number: 54/70, 2nd number: 1 5/10

54/70 - 15/10 is -51/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 10 is 70

    Next, find the equivalent fraction of both fractional numbers with denominator 70
  2. For the 1st fraction, since 70 × 1 = 70,
    54/70 = 54 × 1/70 × 1 = 54/70
  3. Likewise, for the 2nd fraction, since 10 × 7 = 70,
    15/10 = 15 × 7/10 × 7 = 105/70
  4. Subtract the two like fractions:
    54/70 - 105/70 = 54 - 105/70 = -51/70

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